Otto moore



Oct. 2, 1923. Re. 15,693

0. MOORE TROLLEY WHEEL Original Filed March 26. 1919 gwuemtof Otto Moore.

Reissued oer. 2, 1923.

- UNI-TED.STATES PATENT OFFICE ammon or r aanxron'r, IFNDIANA'ASSIGNQR or ONE-HALF To-GILEs s. MOORE,

.1 s or FRANKFORT, INDIANA. I

QTBOLLEY wnnni.

began m5. 1,382 ,l664 datel1 i1i1ie 2s, 1sei',.seria1 No. 285,264, filed March 2651919. Application in "reissue filed Tune 4, 1923.

' 'To aZZ wh-omcon-came v Be it knownthat LOrro Moon's, a citizen of the United stat'esp'residing at'Fran'k fort, in the county of Clinton and State of ,5 Indiana','have invented certain new andu'se-' ful Improvements in 'a'Trolley Wheel, of which the following is a,spec'ificatio f" This invention relatesto'improvements- -trolley' wheels," the object of the invention being to provide whatnia'yibetermed an automatic sliding'jand rotatingftroll'ey forusei on electric cars. i v A fur-then object of the invention-"is to provide an improved trolley wheel which is so formed that parts thereof may. bereplaced when worn out,without the neces sity of ieplacing the entire'wheel'. r i A further object of the'invention is to generally improve the structure otthe trola,

ley wheel' and to provide a wheel which-is comparativelysimple in construction. and economical in use, f v With" the foregoingand other objects, in view, which ;will appear as'fthe description proceeds,

heiinvention consists in the novel features of construction and combination of parts which will morev fully described v hereinafter and particularly pointed out in the claims. I In the drawingsfaccompanying andfl form ing part of this specification,"

' Figure 1 is aside view, partly in section,

showing my improved trolley wheel applied to the pole of an electric car, the pole being broken away; I

Figure 2 is a top plan view thereof;

i Figure 3 is a bottom plan view; and Figure .4 is a perspective view of a seg-f ment of the wheel. l

The same characters of reference designate the same parts in the different figures of the drawings. 5 Y

Referring to the drawings, the wheel proper consistsof a hub 2 having spokes 3 radiating therefrom, and a rim 4e'having a flange 5 extending circumferentially thereof at each side of the ing a depression of considerable depth around the rim ofthe-wheel. The hub 2, spokes 3, rim 4 and flanges 5 arepreferably formed in one integral structure. Adapted to fit between the flanges 5 and to be seated on the periphery of the rim 4: are a plurality, shown herein as four in number, of segwheel, thereby form-- Serial No. (143,450...

mental members on fellies 6, each formed with a concave grove 7 in its periphery to adapt it for contact with the wire conductor 22. Formed on the telly 6 at approximately the longitudinal center thereof is a. lug S which projects inwardly toward the center of thewheel and is adapted to pass through an opening formed in the rim 4, said lug being provided with a transverse opening 9 adapted to receive a cotter pin for securing the segment in position on the rim as shown in Figure 1. The wheel above described is mounted for rotation-between the bifurcated ends 10 of a so-called harp, said harp being provided with'a reduced portion 11 at its opposite end adapted to be secured in the tubular open} ing in the end of a trolley pole 12. The harp is also provided with 'a loop or eye 13 at its underside for attachment of the usual rope and at its'upper side with a pointed lug or nose being to preventthe span Wires, that is to say, the cross wires which support the wire carrying the current,v from catching on the wheel when the trolley jumps off the wire; The loop 13 andnose 14 are prefer} ably cast integral with the harp.

' In the present instance I have provided means for holding the Wheel againstrotation when 'the 'car moves forward and for permittingthe wheel to rotate when'the car is backed up. For this purpose the flanges "5 of the wheel are provided around their peripheries with a plurality of ratchet teeth 15. At the underside ofthe harp is provided a pair of perforated ears or lugs 16, between which is pivoted a swinging pawl 17 that extends across the path of the wheel and is adapted to normally engage a pair of the ratchet teeth on the flanges 5, as shown in Figure 1. The pawl is provided with an arm 18 carrying at the free end.

thereof a weight 19, whereby the pawl is maintained normally in engagement with the ratchet teeth. The Weighted end 19 of the arm is adapted to move between a pair of lugs 20 secured to or formed integral with theharp, whereby sidewise motion of the arm is prevented. 'Asolid lug or shoulder 21 is formed on the harp between the per forated lugs 16 and back of the pivotal connection'of the pawl with said lugs, whereby iii:

such pivotaLc'onnection is supported against the pressure of the pawl.

From the foregoing it will be seen-that whenutheicari ,is traveling. in one "direction, as for instance toward the lBftTOf'FI'glll'B 1, the wheel will be held against rotation by reason of the engagement of the pawl with the ratchet teeth, but when the car is backed up or moved in the oppositegdirection the wheel is free to rotate, whereby anew seg ment or portion of a segment is automatically brought into engagement with the wire; In case no neccssity should arisefor backing up the car when it is idesired to bring a new segment into contact with the wire the: wheel may be rotated by hand to accomplish the s'ame purpose. It will also be seenthat wheneither or all of the segments 6 become worn they may readily be reino'vedby merely removing the cotter pins from the lugs 8 and taking out the worn segment and substituting a newone therefor, withoutnecessitating the replacement-of the entire wheel. 7 y

While I have described in detailthe structure herein illustratedit is tobe understood that. Ido" not thereby limit my invention to the precise-features of construction shown, asI am aware that many mechanical changes may be made therein without departing from thespirit and scope of the invention as set forth in ;the appended claims.

Halving thushfull'y de'scribed'inysaid invention, whatvI cla -im seam and secure by Letters Patent isz Q l. In ..a, .device ofthe class described, a

harp a trolley wheeljournaled thereon and comprising separately removable tread sections; and a pawl and ratcheticonnection be tween the harp and the wheelzand operating to hold thewheeh'against rotation in one direction, ther ebytov present the tread sections one ,at a time. fixed for sliding engagement desire to with'a trolley wire, the pawl {and ratchet mechanism permitting a rotation of the wheel in an opposite direct-ion, thereby to present different-:treadsections for fixed slidingengagementwith the wire, substantially as set forth.

2II1i a device-of the class described, a

harp having depending lugs; a wheel journaled" on the harp and provided with a. ratchet; and a pawl pivoted to the arm and cooperating with the ratchet, the pawl having a rearwardly extended arm received Slidably' between the lugs "and constituting a; gravity means for holding the pawl in operative relation to the ratchet wheel, substantiall as set forth. I V

3. In a trolley,'a harp, a trolley wheel journaled thereo'nand comprising separately removable tread sectionsapawl on the bar and ratchet teeth on-the-whe'el at the e s of the tread sections to "hold the wheel against rotation in one direction but permitting free rotation thereof in the reverse direction, substantially as set forth. 4. In a trolley, a harp, a trolley wheel supported thereby having a removable tread section, and means for holding the wheel against rotation/intone direction with said section only in sliding contact with the trolley wire, substantially asset forth:

5. In a trolley, a harp, a trolley wheel supported thereby, separately removable tread sections on-the WheeLiand meanS for holdingthe wheel against rotation with any one of said sections insole sliding engagement with the trolley wire, substantially as set forth.

In testimony hereof-,1 have hereunto set my hand and seal at Frankfort, Indiana, this29thday, of/ lYIay,,A.w D. nineteen hundred andtwenty-thi'ee'. v r

o 'rro' MOORE. 

